What is the process of a mortgage?

I don't want links to where to go to get a mortgage or basic info I can get by a Google search. I want specifics, as detailed as it can be. I will be paying cash for my home. I have copious amounts of money that nobody knows about and I prefer to keep it that way, so I need to put on a spiel about how I came about aquiring a loan for a fancy house. So basically I will have to be able to tell them about things I have no idea about, if that helps you answer the question any.

Thank you in advance

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